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ODT vs. DOCX vs. PDF: Which Format Should You Use?
ODT, DOCX, and PDF all hold a text document, but they solve different problems. Here’s how OpenDocument Text compares to Word’s format and to PDF, and when each one is the right choice.
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ODT: the open-standard default
ODT is the OASIS OpenDocument Text format — an open, published standard used by default in LibreOffice Writer and OpenOffice Writer, both free software. Nothing about opening or editing it requires a paid license.
DOCX: the ubiquitous default
DOCX is Microsoft Word’s default format and, by sheer market share, the format most businesses and institutions expect when they ask for "a Word document." It opens natively in Word and is broadly supported elsewhere, including LibreOffice, but as a foreign format there rather than the native one.
PDF: fixed, final distribution
PDF isn’t an editing format for either ODT or DOCX — it’s where a document goes once its layout is final and needs to look identical everywhere it’s opened, independent of what software the recipient has.
Compatibility in practice
Because ODT and DOCX are different XML schemas, converting between them (rather than to PDF) can shift spacing, fonts, or list numbering — minor incompatibilities are common even though both are "just" text documents. If a recipient specifically needs an editable Word file, saving directly as DOCX from your word processor is more reliable than round-tripping through ODT.
When to choose each
Use ODT while you’re actively editing in LibreOffice or OpenOffice and want to stay in an open format. Use DOCX when a recipient specifically needs an editable Word file. Use PDF the moment the document is finished and you want it to look the same for every reader, regardless of their software.
ODT vs. DOCX vs. PDF FAQ
- Will opening an ODT file in Microsoft Word lose formatting?
- Word can open ODT files, but as with any cross-format conversion, complex formatting (styles, spacing, list numbering) can shift slightly — the more complex the document, the more likely you are to notice.
- Is ODT a Microsoft format?
- No — ODT is an OASIS open standard, unrelated to and not controlled by Microsoft. Word can open and save ODT files as a compatibility option, but DOCX remains its native format.
- Should I send a resume as ODT?
- Generally, send it as PDF instead — it guarantees the layout looks exactly as intended regardless of what software the reader has, which matters most for something like a resume.
- Does LibreOffice cost money?
- No — LibreOffice (and its ODT format) is free, open-source software with no license fee, unlike Microsoft Word.
- Can I convert ODT straight to PDF without opening LibreOffice?
- Yes — that’s exactly what Looty Tools’ ODT to PDF converter does, entirely in your browser without needing LibreOffice, OpenOffice, or Word installed.
Related guides
- How to Convert ODT to PDFConvert an OpenDocument Text (.odt) file into a PDF with real, selectable text in your browser. Covers the conversion steps and what formatting carries over.
- ODT to PDF Formatting SupportWhat the Looty Tools ODT to PDF converter preserves — headings, bold/italic/underline, lists, tables, images, and paragraph colors — and where ODF features are simplified.
- How to Convert Word to PDFConvert a .docx Word document into a PDF with real, selectable text in your browser. Covers supported formats, how-to steps, and privacy.